import {z} from 'zod'

export type GetApiCandidateArgs = {token: string, page?: number | undefined, per_page?: number | undefined, responsible_recruiter_id?: number | undefined, vacancy_id?: number | undefined, stage_id?: number | undefined, source?: number | undefined, vacancy_sources?: number | undefined};

export type GetApiCandidateOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const apiV1CandidateCustomPropertyResourceItemArray = z.object({id: z.number().int().optional(), name: z.string().optional(), type: z.enum(["text", "number", "textarea", "select", "multiselect"]).optional(), value: z.array(z.union([z.string(), z.number().int()])).nullable().optional()});

export const apiV1CandidateCustomPropertyResourceItemString = z.object({id: z.number().int().optional(), name: z.string().optional(), type: z.enum(["text", "number", "textarea", "select", "multiselect"]).optional(), value: z.string().nullable().optional()});

export const apiV1CandidateCustomPropertyResourceItemInteger = z.object({id: z.number().int().optional(), name: z.string().optional(), type: z.enum(["text", "number", "textarea", "select", "multiselect"]).optional(), value: z.number().int().nullable().optional()});

export const apiV1CandidateCustomPropertiesResourceItem = z.object({id: z.number().int().optional(), name: z.string().optional(), properties: z.array(z.union([apiV1CandidateCustomPropertyResourceItemArray, apiV1CandidateCustomPropertyResourceItemString, apiV1CandidateCustomPropertyResourceItemInteger])).optional()});

export const apiV1CandidateListResource = z.object({id: z.number().int().optional(), name: z.string().optional(), source: z.number().int().optional(), position: z.string().optional(), gender: z.number().int().optional(), current_positions: z.string().optional(), wish_positions: z.string().optional(), salary: z.object({min_salary: z.number().int().optional(), max_salary: z.number().int().optional(), currency_code: z.string().optional()}).optional(), experience: z.object({experience_code: z.number().int().optional(), experience: z.string().optional()}).optional(), work_types: z.array(z.object({type: z.number().int().optional(), name: z.string().optional()})).optional(), status_ids: z.array(z.number().int()).optional(), blacklist: z.number().int().optional(), languages: z.array(z.object({language_id: z.number().int().optional(), name: z.string().optional(), level: z.number().int().optional()})).optional(), contacts: z.array(z.object({type: z.number().int().optional(), value: z.string().optional()})).optional(), tags: z.array(z.object({: z.string().optional()})).optional(), recommended: z.array(z.object({id: z.number().int().optional(), name: z.string().optional()})).optional(), responsible_recruiters: z.array(z.object({id: z.number().int().optional(), name: z.string().optional()})).optional(), vacancies: z.array(z.object({id: z.number().int().optional(), stage_id: z.number().int().optional()})).optional(), custom_properties: z.array(apiV1CandidateCustomPropertiesResourceItem).optional()});

export const candidateListResponse = z.object({result: z.object({current_page: z.number().int().optional(), data: z.array(apiV1CandidateListResource).optional(), first_page_url: z.string().optional(), from: z.number().int().optional(), last_page: z.number().int().optional(), last_page_url: z.string().optional(), next_page_url: z.string().nullable().optional(), path: z.string().nullable().optional(), per_page: z.number().int().optional(), prev_page_url: z.string().nullable().optional(), to: z.number().int().optional(), total: z.number().int().optional()}).optional(), error: z.boolean().optional(), code: z.number().int().optional(), messages: z.array(z.string()).optional()});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Information on candidates
 * 
 * GET /candidate
 */
export const getApiCandidate = async (args: GetApiCandidateArgs, options?: GetApiCandidateOptions) => {
const {baseUrl = "https://hurma.work/api/v1", fetch: fetchFn = fetch} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('accept', "application/json")

if (args.token != null) headers.set("token", String(args.token))
if (args.page != null) query.append("page", String(args.page))
if (args.per_page != null) query.append("per_page", String(args.per_page))
if (args.responsible_recruiter_id != null) query.append("responsible_recruiter_id", String(args.responsible_recruiter_id))
if (args.vacancy_id != null) query.append("vacancy_id", String(args.vacancy_id))
if (args.stage_id != null) query.append("stage_id", String(args.stage_id))
if (args.source != null) query.append("source", String(args.source))
if (args.vacancy_sources != null) query.append("vacancy_sources", String(args.vacancy_sources))

const url = `${baseUrl.replace(/\/+$/, '')}/candidate${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(candidateListResponse, await res.json())
};